A triangle has one angle measuring 3x degrees. A second angle measures 2x + 20 degrees and the third angle measures 4x -20 degre

Question

Sedbober [7]

3 years ago

12

A triangle has one angle measuring 3x degrees. A second angle measures 2x + 20 degrees and the third angle measures 4x -20 degre

es. What is the value of x

Mathematics

2 answers:

lions [1.4K] · Answer 1 · 2022-01-05T14:13:30+03:00

lions [1.4K]3 years ago

6 0

Answer:

20

Step-by-step explanation:

the comment below or above me has everything right except one thing. 4 plus 2 plus 3 equals 9, Not 10. 180 divided by 9 equals 20 and there's your answer

Maurinko [17] · Answer 2 · 2022-01-05T11:54:31+03:00

Maurinko [17]3 years ago

4 0

All the interior angles of a triangle always add up to 180 degrees.

3x + (2x + 20) + (4x - 20) = 180
3x + 2x + 20 + 4x - 20 = 180
3x + 2x + 4x + 20 - 20 = 180
10x = 180
x = 180/10
Therefore, x = 18